[U-Boot] [PATCH] mxs: fixed battery boot on imx233-olinuxino-micro

[Marek Vasut]

On Friday, June 06, 2014 at 12:18:09 AM, Marek Vasut wrote:
> On Wednesday, May 21, 2014 at 04:01:55 AM, Peter Schumann wrote:
> > This patch makes it possible to boot from battery on olinuxino Boards
> > from Olimex.
> > 
> > We should not set DOUBLE_FETS in HW_POWER_MINPWR, it makes my system
> > reset with in seconds while running on battery power.
> > 
> > Also  mxs_power_enable_4p2() should not be called if running from
> > battery. It switches VDDD and VDDA to LinReg mode and than turns off
> > the VDDIO DCDC supply. At this point the system resets.
> > If we run on battery this is no good idea because the LinRegs are
> > chained behind VDDIO and battery voltage seems not enough to power
> > the system from LinRegs.
> > Also is the power system already running on DCDC after BootROM hands
> > over to u-boot, so no sense in switching back to LinRegs.
> 
> Sorry for the late reply, I'm somewhat congested recently. In the meantime,
> I was not able to test this yet. But you're missing Signed-off-by: line,
> can you please re-send this with a proper SoB line [1] ?
> 
> [1] http://www.denx.de/wiki/U-Boot/Patches#General_Patch_Submission_Rules

Bump?

Best regards,
Marek Vasut